Just because your name isn't James Cameron (explorer of the sea), doesn't mean you don't deserve to discover the ocean. And if you can't afford your own deep-water submersible, but still hear the call of the deep, the Ziphius Aquatic Drone ($245) might better fit your budget. With two powerful turbines, it can move across the water at speeds up to 6mph, for up to an hour, controlled entirely by an app on your tablet or smartphone. A 720p HD camera lets you capture video and photos, so you can record sailing, surfing, and swimming adventures, or stealthily observe life underwater.